NLO polymers and optical waveguides based thereon
View Patent ↗The invention relates to new polymers useful in non linear optical (NLO) applications, particularly as optical waveguide materials.
1. An NLO polymer having the general formula
wherein: R 1 ; R 2 ; R 3 ; R 4 are independently selected from the group consisting of
—H; —C n D 2n+1 ; —OC n D 2n+1 ; —SC n D 2n+1 ; —SeC n D 2n+1 ;
—TeC n D 2n+1 ; —N(C n D 2n+1 ) 2 ; —P(C n D 2n+1 ) 2 ;
—Si(C n D 2n+1 ) 3 ; —Sn(C n D 2n+1 ) 3 ; —Ge(C n D 2n+1 ) 3 ; and
m=3-10,000 and n=1-50;
wherein at least one of R 1 ; R 2 ; R 3 ; and R 4 is a deuterated group.
2. The NLO polymer according to claim 1 , wherein R 2 , and R 3 are H; R 1 , and R 4 are independently selected from —C n D 2n+1 , —OC n D 2n+1 , and —SC n D 2n+1 ; and n=1-50, and m=3-10,000.
3. The NLO polymer according to claim 2 , wherein the polymer is poly(1,4-dioctyloxy-2,5-phenylene vinylene)-d 34 having the formula
wherein m=3-10,000.
4. The NLO polymer according to claim 2 , wherein n=1-20.
5. The NLO polymer according to claim 2 , wherein m=10-8,000.
6. An optical waveguide comprising an NLO polymer according to any one of the preceding claims.